# nitz

Most popular questions and responses by nitz-
## physics

1.) Draw a set of 1.5-volt cells in a series circuit so that the total battery voltage is 9 volts. A.) how many cell does it take? B.) show polarity connection. C.) suppose you connected one of the cells in part (a) so that it was backwards. what would the

*asked on September 30, 2012* -
## probability

a couple is planning to have three children. Find the probability that the couple will have: a.) 2 girls and 1 boy? b.) 2 girls followed by a boy? c.) at least 1 girl? please answer my question thank you very much, have a good day!

*asked on September 21, 2012* -
## physics

Three similar ideal cells (no internal resistances) supply current of 0.5 Ampere to a 10 Ohms resistor when they are in the parallel.How much current will they supply to the same risistor when they are connected in series aiding?

*asked on September 30, 2012* -
## physics

1.) Draw a set of 1.5-volt cells in a series circuit so that the total battery voltage is 9 volts. A.) how many cell does it take? B.) show polarity connection. C.) suppose you connected one of the cells in part (a) so that it was backwards. what would the

*asked on September 30, 2012* -
## statistics

suppose 45 students in an organization are male and 55 are female. Ten females and 15 males in the organization are graduating students. What is the probability that a: a.) student chosen at random is male or a graduating student? b.) students chosen at

*asked on September 21, 2012* -
## physics

Three similar ideal cells (no internal resistances) supply current of 0.5 Ampere to a 10 Ohms resistor when they are in the parallel.How much current will they supply to the same risistor when they are connected in series aiding?

*asked on September 30, 2012* -
## physics

A 2000 watt heating element is connected in parallel to a 100 watt bulb across 200 volt source. Determine the total power and heat generated in the combination for 1.5 hours. help!

*asked on February 10, 2013* -
## physics

If electrical energy cost 5.00 per kilowatt hour, what will be the daily cost of using a 50 watt bulb for 4 hours a day when connected across a 220 volt source?, help please!

*asked on February 10, 2013* -
## physics

a radiation survey meter observed gamma radiation of 150 mR/hr. The air field ionization chamber has a volume of 580 cubic cm. If the electron generated by the radiation in the chamber are swept out by an electric field, what is the current produced?

*asked on December 8, 2012* -
## probability

a pair of dice is tossed. What is the probability of getting a total of 6?

*asked on September 21, 2012* -
## probability

a disk drive is randomly selected from 50 available disk drives, of which five are defective. What is the probability that it is not defective?, hope you answer this, thanks! :)

*asked on September 21, 2012* -
## physics

determine the amount of heat generated per minute by a 120 volt lamp which takes 0.5 amperes. thanks!

*asked on February 10, 2013* -
## radiation physics

a Geiger ionization chamber contains 60 cubic cm of air and records 500 mR/min. calculate (a). the current produce by the chamber (b). the total number of ion pairs produced per hour of exposure. please answer, thank you!,

*asked on December 9, 2012* -
## physics

a Geiger ionization chamber contains 60 cubic cm of air and records 500 mR/min. calculate (a). the current produce by the chamber (b). the total number of ion pairs produced per hour of exposure. please answer, thank you!,

*asked on December 8, 2012* -
## statistics

State the null and alternative hypothesis for the following: 1.) A small local bank wants to check if the average daily balance is not higer than 3500 for its individual saving account. Ho: Ha: 2.) A researcher wants to find out if the mean weekly wage of

*asked on September 30, 2012* -
## statistic and probability

a disk drive is randomly selected from 50 available disk drives, of which five are defective. What is the probability that it is not defective?, hope you answer this, thanks! :)

*asked on September 20, 2012*